SHAKING TABLE AND TILTING TESTS FOR DEVELOPMENT OF ASEISMIC COUNTERMEASURES OF MASONRY RETAINING WALL USING COLLAPSE PREVENTION NET AND SOIL NAILING

Abstract

A series of tilting tests and shaking table tests were carried out so as to develop an aseismic countermeasure for masonry retaining walls using collapse prevention net and soil nailings. Tilting tests were carried out so as to investigate into the reinforcement mechanisms and the effect of backfill stability on the reinforcement effect. Shaking table tests were carried out to understand the resistant mechanisms in dynamic field. Results from a series of model tests clarified the resistant mechanism. It was also found from the tests that collapse prevention net was highly effective in reducing horizontal displacement by restricting the blocks with soil nailings as well as preventing the collapse of masonry retaining walls. In additions to the above, a design methodology was also proposed by reflecting the resistant mechanism revealed by the model tests.